The AAT2822-AAT2825 family of integrated panel power solutions provides the regulated voltages required by an active-matrix thin-film transistor (TFT) liquid-crystal display (LCD). The AAT2822 includes a triple-output DC-DC converter, a LED backlight driver, and a VCOM buffer in a 4 mm x 4mm TQFN package. The primary 1.3MHz DC-DC boost converter uses an ultr.
LCD Bias Power
• 2.5V to 5.5V Input Supply Range
• 1.3MHz Fixed Frequency Current-Mode Step-Up Regulator
• Fast Transient Response
• Adjustable Voltage up to 14.5V ▪ ±1% Typical Accuracy
• High Efficiency (93%) @ 50mA Output Current
• Small External Inductor and Capacitors
• Integrated Soft Start and Sequencing of All Rails
• Short-Circuit, Over-Voltage, and Over-Temperature Protection Positive Output, VGH
• Up to 13.2V Input Supply (VDD)
• Adjustable Voltage up to 30V @ 20mA ▪ ±3% Typical Accuracy Negative Output, VGL
• Up to 13.2V Input Supply (VDD)
• Adjustable Voltage down to -30V @ 20mA ▪.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | AAT2820 |
AAT |
Triple-Output Charge Pump Regulator | |
2 | AAT2822 |
Advanced Analogic Technologies |
(AAT2822 - AAT2825) TFT-LCD DC-DC Converter | |
3 | AAT2823 |
Advanced Analogic Technologies |
(AAT2822 - AAT2825) TFT-LCD DC-DC Converter | |
4 | AAT2825 |
Advanced Analogic Technologies |
(AAT2822 - AAT2825) TFT-LCD DC-DC Converter | |
5 | AAT2801 |
AAT |
Multi-Mode Charge Pump | |
6 | AAT2803 |
AAT |
Six-Channel White LED Backlight Charge Pump | |
7 | AAT2805 |
AAT |
Dual High Efficiency Charge Pump | |
8 | AAT2806 |
ANALOGIC TECH |
Dual High Efficiency Charge Pump | |
9 | AAT2842 |
Skyworks Solutions |
High Current Charge Pump | |
10 | AAT2842 |
ANALOGICTECH |
High-Current Charge Pump | |
11 | AAT2845 |
ANALOGICTECH |
Four-Channel Backlight Driver | |
12 | AAT2856 |
AAT |
High Current Charge Pump |